2131010213 has 4 divisors (see below), whose sum is σ = 2135350848. Its totient is φ = 2126669580.

The previous prime is 2131010207. The next prime is 2131010239. The reversal of 2131010213 is 3120101312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2131010213 - 2⁸ = 2131009957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131010293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2169581 + ... + 2170562.

It is an arithmetic number, because the mean of its divisors is an integer number (533837712).

Almost surely, 2^2131010213 is an apocalyptic number.

It is an amenable number.

2131010213 is a deficient number, since it is larger than the sum of its proper divisors (4340635).

2131010213 is an equidigital number, since it uses as much as digits as its factorization.

2131010213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4340634.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2131010213 is about 46162.8661696823. The cubic root of 2131010213 is about 1286.8517289166.

Adding to 2131010213 its reverse (3120101312), we get a palindrome (5251111525).

The spelling of 2131010213 in words is "two billion, one hundred thirty-one million, ten thousand, two hundred thirteen".